Conner Hansen Alex Summer Andreas Floeck Safe Message System.

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Presentation transcript:

Conner Hansen Alex Summer Andreas Floeck Safe Message System

Use Case Diagram

Utility Tree (1) Security – Session-level encryption (H) – User-level encryption (H) – Unspoofable communication path (H) – User authentication (M) Reliability (Fault Tolerance) – Guarantee delivery of messages (H) – Logging system (L) – Available P2P network (L)

Utility Tree (2) Usage – Selectable security level (H) – Broadcast message (M) – Store message (M) Maintainability – Updatable security algorithms (M) – Updatable network routines (M) – Bugfixes, update system (H) Modifiability – Easy to change GUI (L)

Integrated Security Attributes (Cauliflower)

External Security Class (SecX)

State Diagram: Program

State Diagram: Session

Sequence Diagram: Send Message

Sequence Diagram: Receive Message

What did we learn?